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EP0293755A2 - Clamping device - Google Patents

Clamping device Download PDF

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Publication number
EP0293755A2
EP0293755A2 EP88108386A EP88108386A EP0293755A2 EP 0293755 A2 EP0293755 A2 EP 0293755A2 EP 88108386 A EP88108386 A EP 88108386A EP 88108386 A EP88108386 A EP 88108386A EP 0293755 A2 EP0293755 A2 EP 0293755A2
Authority
EP
European Patent Office
Prior art keywords
jaw
holder
clamping
clamping device
angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88108386A
Other languages
German (de)
French (fr)
Other versions
EP0293755B1 (en
EP0293755A3 (en
Inventor
Reinhard Hafeneger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DESTACO Europe GmbH
Original Assignee
DE STA CO Metallerzeugnisse GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DE STA CO Metallerzeugnisse GmbH filed Critical DE STA CO Metallerzeugnisse GmbH
Priority to AT88108386T priority Critical patent/ATE63250T1/en
Publication of EP0293755A2 publication Critical patent/EP0293755A2/en
Publication of EP0293755A3 publication Critical patent/EP0293755A3/en
Application granted granted Critical
Publication of EP0293755B1 publication Critical patent/EP0293755B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments

Definitions

  • the invention relates to a clamping device for clamping in particular sheet metal according to the preamble of the main claim.
  • Clamping devices of this type which are also referred to as clamping grippers, are generally known and in use, so that no special, printed proof is required. Clamping devices of this type are used, in particular, to insert and remove sheets or other parts in presses, shaping or punching systems in a releasable but sufficiently tight manner and to convey them from station to station. For this purpose, as a rule, several clamping devices are appropriately spaced on a reciprocating conveyor frame, with the aid of which the metal sheets, gripped by the clamping devices, are passed on from station to station.
  • the detection of the sheets takes place between the two clamping jaws, of which the movable and adjustable by the actuating element is usually equipped with fixing tips, while the other is suitably fixed to a support of the conveyor frame belonging to the processing station by means of holding parts for the actuating element.
  • the actuating elements used for such clamping devices are generally actuating cylinders, the piston rod of which is suitably coupled to the movable clamping jaw at the free end. Insofar as the piston rod end has to perform a curve movement in such devices, it is also already known to pivotally mount the actuating element on the holder in order to be able to follow such a curve movement.
  • the invention is therefore based on the object of improving a clamping device of the type mentioned in such a way that, while maintaining a compact design and stability, the entire device is fixed to its carrier as usual, but can be brought to different inclination positions as required, with the proviso that, in spite of the inclination of the support jaw, the other jaw, which can be pivoted by the actuating element, should be able to assume its parallel position to the support jaw in the clamping position.
  • the clamping device In order to make the clamping device as compact as possible, it is advantageously designed such that the actuatable The jaw and the angle-adjustable support jaw for the workpiece are arranged on a common axis, which must be present anyway for the movable jaw.
  • the angle-adjustable clamping jaw is provided in the region of its rear side flanks with two articulated brackets which are articulated on the axis, and corresponding articulated brackets are arranged on the holder for the actuating element.
  • the hinged straps are advantageously provided on their opposing flank surfaces in a known manner with latching elements which, for example in the sense of a spur toothing, are equipped with suitable profiling, so that these teeth latch against each other when tightening and a rigid connection between them the support jaw set with the desired inclination and the holder.
  • spur toothing is not very strongly profiled, it may be sufficient for the release and tightening of the latching to loosen or clamp the axis designed as a clamping bolt and to slightly bend the respective tabs of the holder against each other and against the latching of the clamping jaw to be determined to brace.
  • the clamping device can advantageously be designed such that in at least one of the hinge plates of the holder, an axially adjustable with respect to the axis, but fixed against rotation, with Locking element provided jaw locking ring is arranged, which will be explained in more detail.
  • This design results in sufficient play for the clamping jaw locking ring after the axis has been released, which of course must be arranged in a rotationally fixed manner in the holder with the possibility of axial displacement.
  • a pin lockable hole lock could optionally also be provided.
  • the device can also be designed such that the angle-adjustable support jaw, which is mounted on its own axis or on a common axis with the other jaw, is articulated to an actuator arranged on the holder. This is also explained in more detail.
  • the embodiment with the aforementioned locking elements is preferred, since it is easier to manufacture.
  • the adjustability provided in the device according to the invention of the actuating lever which is normally fixedly connected to the movable clamping jaw at a certain angle has of course the advantage that this adjustability can take place independently of the setting of the support jaw that the opening width of the movable clamping jaw is variable.
  • the clamping device consists of a clamping jaws 2, 3, which can be moved relative to one another in the closed and open positions on a holder 1 formed by two jaws, of which the actuatable clamping jaw 2 is coupled to an actuating member 4 of the actuating element 1 ' is, which consists of an actuating cylinder in the illustrated embodiment.
  • the other support jaw 3 is arranged on the holder 1 at an adjustable angle and, as can be seen from FIG. 3, is designed to be fixable in different positions.
  • the actuatable and the angle-adjustable jaw 2, 3 are mounted on a common axis 5 of the holder 1, wherein of course the actuatable jaw 2 is rotatably seated on this axis 5, which is provided on at least one side with at least one clamping nut 5 '.
  • the angle-adjustable support jaw 3 is provided in the region of its rear side flanks 6 with two hinge plates 7 mounted on the axis 5 and corresponding hinge plates 8 are arranged on the holder 1 for the actuating element 1, or these plates 8 are formed by the corresponding ends of the holder 1 , at the other end, as can also be seen from FIGS. 1 to 3, the actuating element 1 'is arranged pivotably at 1 ⁇ . This pivotability is necessary in view of the fact that the coupling point 12 between the end of the actuator 4 (piston rod) and the actuating lever 13 of the actuatable jaw 2 about the axis 5 describes an arc.
  • FIG. 3 illustrates, the holder 1, however, maintaining its fixed position on the carrier 16.
  • the locking elements 10 on the hinge plates 7 and 8 can be designed in the sense of FIGS. 4, 5, which are shown there greatly enlarged. If the depth of the profiling of the latching elements 10 can be disengaged and thus adjusted only with considerable axial play after the axis 5 has been released, the clamping jaw can be designed, for example, in the sense of FIG.
  • the adjusting lever 13 of the pivotable jaw 2 is advantageously adjustable in relation to this and fixable with corresponding locking elements 10 'to this. If, for example, in FIG. 1, the support jaw 3 is pivoted downward and fixed by 90 ° in the counterclockwise direction, the opening angle indicated by the arrow for the pivotable jaw 2 is maintained in that the jaw 2 is released from its locking to the actuating lever 13 and also pivoted downwards by 90 ° and fixed again to the extension 13, which, however, remains in the position shown.
  • the adjustability of the adjustable support jaw 3 is effected in a different way.
  • this embodiment also makes it clear that the tabs 7 of the support jaw 3 do not necessarily have to be mounted on the same axis 5 as the jaw 2, but can be mounted on a separate axis 5 'or axle bolt of the holder 1, as shown is posed.
  • the setting is effected with an actuator 14, for example in the form of a small threaded spindle, which is coupled, for example, with a spherical head configuration at one end with an extension 3 'of the support jaw 3.
  • the actuator 14 engages in a rotatable threaded receptacle, so that the support jaw 3 can be adjusted at an angle to the holder 1 when the spindle is actuated.
  • Elements for fixing the spindle in the desired position are not shown, apart from the fact that the thread to be provided can expediently be equipped with a self-locking pitch.
  • the holders 1 are provided with two through bores 15 each.
  • the carrier 16 consists, as can be seen better from FIG. 1A, of a stable angle piece, which is welded, for example, to the end of a sufficiently stable support arm 17, which in turn is then suitably attached to the frame or housing of a processing station with its other end (not shown) is attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Clamps And Clips (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

The clamping device is intended in particular for clamping sheet metal in position and consists of two clamping jaws (2, 3) which are arranged on a holder (1) for an actuating element (1') in such a way as to be movable relative to one another into closed and open position and of which the clamping jaw (2) provided with a control lever (13) is coupled to the actuating member of the actuating element (1') pivotably mounted on the holder (1). Here, the supporting clamping jaw (3) is arranged on the holder (1) in such a way that it can be adjusted in angle independently of the clamping jaw (2) and can be fixed in different positions. The control lever (13) of the clamping jaw (2) is designed in such a way that it can likewise be adjusted in angle relative to this clamping jaw (2) and can be fixed in different positions. <IMAGE>

Description

Die Erfindung betrifft eine Klemmvorrichtung zum Festklemmen von insbesondere Blechen gemäß Oberbegriff des Hauptanspru­ches.The invention relates to a clamping device for clamping in particular sheet metal according to the preamble of the main claim.

Derartige Klemmvorrichtungen, die auch als Klemmgreifer be­zeichnet werden, sind allgemein bekannt und in Benutzung, so daß es eines speziellen, druckschriftlichen Nachweises nicht bedarf. Derartige Klemmvorrichtungen dienen insbesondere dazu, Bleche oder sonstige Teile in Pressen, Verformungs- oder Stanzanlagen lösbar, aber ausreichend fest verspannt ein- und wieder auszubringen bzw. von Station zu Station zu fördern. Dafür sitzen in der Regel mehrere Klemmvorrichtungen entsprechend beabstandet an einem hin- und herbeweglichen Fördergestell, mit dessen Hilfe die Bleche, von den Klemmvor­richtungen erfaßt, von Station zu Station weitergelegt wer­den. Die Erfassung der Bleche erfolgt zwischen den beiden Klemmbacken, von denen die bewegliche und vom Betätigungsele­ment verstellbare in der Regel mit Fixierungsspitzen ausge­stattet ist, während die andere mittels Halteteiles für das Betätigungselement in geeigneter Weise an einer zu Bear­beitungsstation gehörenden Auflage des Fördergestelles fi­xiert wird. Bei den für derartige Klemmvorrichtungen benutz­ten Betätigungselementen handelt es sich in der Regel um Stellzylinder, deren Kolbenstange am freien Ende in geeigne­ter Weise mit der beweglichen Klemmbacke gekoppelt ist. So­weit bei solchen Vorrichtungen das Kolbenstangenende eine Kurvenbewegung auszuführen hat, ist es auch bereits bekannt, das Betätigungselement am Halter schwenkbar zu lagern, um ei­ner solchen Kurvenbewegung folgen zu können.Clamping devices of this type, which are also referred to as clamping grippers, are generally known and in use, so that no special, printed proof is required. Clamping devices of this type are used, in particular, to insert and remove sheets or other parts in presses, shaping or punching systems in a releasable but sufficiently tight manner and to convey them from station to station. For this purpose, as a rule, several clamping devices are appropriately spaced on a reciprocating conveyor frame, with the aid of which the metal sheets, gripped by the clamping devices, are passed on from station to station. The detection of the sheets takes place between the two clamping jaws, of which the movable and adjustable by the actuating element is usually equipped with fixing tips, while the other is suitably fixed to a support of the conveyor frame belonging to the processing station by means of holding parts for the actuating element. The actuating elements used for such clamping devices are generally actuating cylinders, the piston rod of which is suitably coupled to the movable clamping jaw at the free end. Insofar as the piston rod end has to perform a curve movement in such devices, it is also already known to pivotally mount the actuating element on the holder in order to be able to follow such a curve movement.

Im Zuge moderner Bearbeitungsmethoden treten solche Klemmauf­gaben immer häufiger auf, wobei mit den bisherigen Klemmvor­richtungen der eingangs genannten Art solchen Klemmaufgaben dann nicht ohne weiteres und nur mit Hilfsmaßnahmen genügt werden kann, wenn die Auflageebene der festen Auflageklemm­backe mit einer anderen Neigung als der vorgesehenen justiert bzw. fixiert werden soll, d.h. für solche geneigte Anordnungen der ganzen Klemmvorrichtung war es erforderlich, entsprechend geneigt ausgebildete Zwischenelemente, Träger od. dgl. vorzusehen oder die Vorrichtung von vornherein ent­sprechend geneigt zu montieren, was aber häufig bspw. wegen beengter Raumverhältnisse nicht ohne weiteres möglich ist.In the course of modern machining methods, such clamping tasks occur more and more frequently, such clamping tasks with the previous clamping devices of the type mentioned at the beginning then not easily and only with auxiliary measures if the support level of the fixed support jaw is to be adjusted or fixed with a different inclination than the intended one, i.e. for such inclined arrangements of the entire clamping device it was necessary to have appropriately inclined intermediate elements, supports or the like. To provide or to mount the device appropriately inclined from the outset, but this is often not readily possible, for example because of the limited space available.

Der Erfindung liegt demgemäß die Aufgabe zugrunde, eine Klemmvorrichtung der eingangs genannten Art dahingehend zu verbessern, daß unter Beibehaltung kompakter Bauweise und Stabilität die ganze Vorrichtung an ihrem Träger wie üblich fixiert, dabei aber in bedarfsangepaßt unterschiedliche Nei­gungsstellungen gebracht werden kann, und zwar mit der Maß­gabe, daß trotz Neigungseinstellbarkeit der Auflageklemm­backe die andere, vom Betätigungselement schwenkbare Klemm­backe in Klemmstellung ihre Parallellage zur Auflageklemm­backe einnehmen können soll.The invention is therefore based on the object of improving a clamping device of the type mentioned in such a way that, while maintaining a compact design and stability, the entire device is fixed to its carrier as usual, but can be brought to different inclination positions as required, with the proviso that, in spite of the inclination of the support jaw, the other jaw, which can be pivoted by the actuating element, should be able to assume its parallel position to the support jaw in the clamping position.

Diese Aufgabe ist mit einer Klemmvorrichtung der eingangs ge­nannten Art nach der Erfindung durch die im Kennzeichen des Hauptanspruches angeführten Merkmale gelöst. Vorteilhafte Weiterbildungen ergeben sich nach den Unteransprüchen.This object is achieved with a clamping device of the type mentioned according to the invention by the features stated in the characterizing part of the main claim. Advantageous further developments result from the subclaims.

Durch diese Ausbildung ist es möglich, die bisher dem Halter für das Betätigungselement fest zugeordnete Auflageklemmbacke in bezug auf den Halter in verschiedenen Winkelstellungen einzustellen und in der jeweils erforderlichen Lage zu fixie­ren, wobei die betätigbare Klemmbacke in Anpassung an die je­weilige Winkelstellung der Auflageklemmbacke entsprechend winkelverstellt wird, was unabhängig von der einstellbaren Klemmbacke geschieht.With this design, it is possible to adjust the support jaw, which was previously assigned to the holder for the actuating element, with respect to the holder in various angular positions and to fix it in the required position, the actuatable jaw being adjusted in accordance with the respective angular position of the support jaw what happens regardless of the adjustable jaw.

Um die Klemmvorrichtung so kompakt wie möglich zu gestalten, ist diese vorteilhaft derart ausgebildet, daß die betätigbare Klemmbacke und die winkeleinstellbare Auflageklemmbacke für das Werkstück auf einer gemeinsamen Achse angeordnet sind, die sowieso für die bewegliche Klemmbacke vorhanden sein muß. Die winkeleinstellbare Klemmbacke ist dafür im Bereich ihrer hinteren Seitenflanken mit zwei an der Achse angelenkten Ge­lenklaschen versehen,und am Halter für das Betätigungselement sind entsprechende Gelenklaschen angeordnet. Bezüglich der Fixierbarkeit der winkeleinstellbaren Auflageklemmbacke zum Halter sind die Gelenklaschen vorteilhaft an ihren gegenein­anderliegenden Flankenflächen in bekannter Weise mit Verra­stungselementen versehen, die bspw. im Sinne einer Stirnver­zahnung mit geeigneter Profilierung ausgestattet sind, so daß sich diese Verzahnung beim Festspannen gegeneinander verra­sten und eine starre Verbindung zwischen der mit gewunschter Neigung eingestellten Auflageklemmbacke und dem Halter her­stellen. Sofern die Stirnverzahnung nicht sehr stark profi­liert ist, kann es für die Lösung und Festspannung der Verra­stung ausreichen, die als Spannbolzen ausgebildete Achse zu lösen bzw. festzuspannen und beim Festspannen die betreffen­den Laschen des Halters dadurch geringfügig gegeneinander zu­sammenzubiegen und gegen die Verrastungen der damit festzu­stellenden Klemmbacke zu verspannen. Bei einer stärkeren Pro­filierung derartiger Verrastungselemente, der durch ein Ver­biegen der Laschen nicht mehr zu genügen wäre, kann die Klemmvorrichtung vorteilhaft derart ausgebildet werden, daß in mindestens einer der Gelenklaschen des Halters ein in be­zug auf die Achse axial verstellbarer, aber gegen Drehung fi­xierter, mit Verrastungselementen versehener Klemmbackenfest­stellring angeordnet ist, was noch näher erläutert wird. Durch diese Ausbildung ergibt sich nach Lösung der Achse aus­reichend Spiel für den Klemmbackenfeststellring, der natür­lich im Halter bei axialer Verschiebemöglichkeit drehfest an­geordnet sein muß. Anstelle von Verrastungsstirnverzahnungen könnte ggf. ohne weiteres auch eine verstiftbare Locharretie­rung vorgesehen werden.In order to make the clamping device as compact as possible, it is advantageously designed such that the actuatable The jaw and the angle-adjustable support jaw for the workpiece are arranged on a common axis, which must be present anyway for the movable jaw. For this purpose, the angle-adjustable clamping jaw is provided in the region of its rear side flanks with two articulated brackets which are articulated on the axis, and corresponding articulated brackets are arranged on the holder for the actuating element. With regard to the fixability of the angle-adjustable support jaw to the holder, the hinged straps are advantageously provided on their opposing flank surfaces in a known manner with latching elements which, for example in the sense of a spur toothing, are equipped with suitable profiling, so that these teeth latch against each other when tightening and a rigid connection between them the support jaw set with the desired inclination and the holder. If the spur toothing is not very strongly profiled, it may be sufficient for the release and tightening of the latching to loosen or clamp the axis designed as a clamping bolt and to slightly bend the respective tabs of the holder against each other and against the latching of the clamping jaw to be determined to brace. With a stronger profile of such locking elements, which would no longer be sufficient by bending the tabs, the clamping device can advantageously be designed such that in at least one of the hinge plates of the holder, an axially adjustable with respect to the axis, but fixed against rotation, with Locking element provided jaw locking ring is arranged, which will be explained in more detail. This design results in sufficient play for the clamping jaw locking ring after the axis has been released, which of course must be arranged in a rotationally fixed manner in the holder with the possibility of axial displacement. Instead of locking spur gear teeth, a pin lockable hole lock could optionally also be provided.

Bezüglich der Winkeleinstellbarkeit der nicht betätigbaren Auflageklemmbacke kann die Vorrichtung auch derart ausgebil­det sein, daß die winkeleinstellbare Auflageklemmbacke, an einer eigenen oder einer gemeinsamen Achse mit der anderen Backe gelagert, mit einem am Halter angeordneten Stellglied gelenkig verbunden ist. Auch dies wird noch näher erläutert. Bevorzugt wird jedoch die Ausführungsform mit den vorerwähn­ten Verrastungselementen, da diese einfacher herzustellen ist.With regard to the angular adjustability of the non-actuatable support jaw, the device can also be designed such that the angle-adjustable support jaw, which is mounted on its own axis or on a common axis with the other jaw, is articulated to an actuator arranged on the holder. This is also explained in more detail. However, the embodiment with the aforementioned locking elements is preferred, since it is easier to manufacture.

Die bei der erfindungsgemäßen Vorrichtung vorgesehene Ein­stellbarkeit des normalerweise fest mit der beweglichen Klemmbacke unter einem bestimmten Winkel verbundenen Stellhe­bels hat natürlich den Vorteil, da diese Einstellbarkeit un­abhängig von der Einstellung der Auflageklemmbacke erfolgen kann, daß die Öffnungsweite der beweglichen Klemmbacke varia­bel ist.The adjustability provided in the device according to the invention of the actuating lever which is normally fixedly connected to the movable clamping jaw at a certain angle has of course the advantage that this adjustability can take place independently of the setting of the support jaw that the opening width of the movable clamping jaw is variable.

Die erfindungsgemäße Klemmvorrichtung wird nachfolgend anhand der zeichnerischen Darstellung von Ausführungsbeispielen nä­her erläutert.The clamping device according to the invention is explained in more detail below with reference to the drawing of exemplary embodiments.

Es zeigt schematisch

  • Fig. 1 die neuartige Klemmvorrichtung in Seitenansicht;
  • Fig. 1A die Klemmvorrichtung gemäß Fig. 1 in Pfeilrich­tung A gesehen;
  • Fig. 2 die Klemmvorrichtung gemäß Fig. 1 in Draufsicht;
  • Fig. 3 die Klemmvorrichtung in Seitenansicht mit ver­schiedenen Neigungsstellungen der Klemmbacken;
  • Fig. 4, 5 in Seitenansicht und perspektivisch mögliche Aus­führungsformen von Verrastungselementen;
  • Fig. 6 im Schnitt eine besondere Ausführungsform der Verrastungselemente und
  • Fig. 7 in Seitenansicht und stark schematisiert eine an­dere Ausführungsform der Klemmvorrichtung.
It shows schematically
  • Figure 1 shows the novel clamping device in side view.
  • 1A seen the clamping device of Figure 1 in the direction of arrow A;
  • FIG. 2 shows the clamping device according to FIG. 1 in plan view;
  • 3 shows the clamping device in a side view with different inclination positions of the clamping jaws;
  • 4, 5 in side view and perspective possible embodiments of locking elements;
  • Fig. 6 in section a special embodiment of the locking elements and
  • Fig. 7 in side view and highly schematic another embodiment of the clamping device.

Wie aus den Fig. 1 bis 3 ersichtlich, besteht die Klemmvor­richtung aus an einem aus zwei Backen gebildeten Halter 1 relativ zueinander in Schließ- und Öffnungsstellung bewegba­ren Klemmbacken 2, 3, von denen die betätigbare Klemmbacke 2 mit einem Betätigungsglied 4 des Betätigungselementes 1′ ge­koppelt ist, das im dargestellten Ausführungsbeispiel aus ei­nem Stellzylinder besteht. Die andere Auflageklemmbacke 3 ist am Halter 1 winkeleinstellbar angeordnet und, wie aus Fig. 3 ersichtlich, in unterschiedlichen Stellungen fixierbar ausge­bildet. Zweckmäßig sind dabei die betätigbare und die win­keleinstellbare Klemmbacke 2, 3 auf einer gemeinsamen Achse 5 des Halters 1 gelagert, wobei natürlich die betätigbare Klemmbacke 2 drehbar auf dieser Achse 5 sitzt, die auf minde­stens einer Seite mit mindestens einer Spannmutter 5′ verse­hen ist. Die winkeleinstellbare Auflageklemmbacke 3 ist im Bereich ihrer hinteren Seitenflanken 6 mit zwei auf der Achse 5 gelagerten Gelenklaschen 7 versehen und am Halter 1 für das Betätigungselement 1′ sind entsprechende Gelenklaschen 8 an­geordnet, bzw. diese Laschen 8 werden von den entsprechenden Enden des Halters 1 gebildet, an dessen anderen Ende, wie ebenfalls aus den Fig. 1 bis 3 ersichtlich, das Betätigungs­element 1′ bei 1˝ schwenkbar angeordnet ist. Diese Schwenk­barkeit ist in Rücksicht darauf erforderlich, daß der Koppe­lungspunkt 12 zwischen dem Ende des Betätigungsgliedes 4 (Kolbenstange) und dem Stellhebel 13 der betätigbaren Klemm­backe 2 um die Achse 5 einen Kreisbogen beschreibt.As can be seen from FIGS. 1 to 3, the clamping device consists of a clamping jaws 2, 3, which can be moved relative to one another in the closed and open positions on a holder 1 formed by two jaws, of which the actuatable clamping jaw 2 is coupled to an actuating member 4 of the actuating element 1 ' is, which consists of an actuating cylinder in the illustrated embodiment. The other support jaw 3 is arranged on the holder 1 at an adjustable angle and, as can be seen from FIG. 3, is designed to be fixable in different positions. Appropriately, the actuatable and the angle-adjustable jaw 2, 3 are mounted on a common axis 5 of the holder 1, wherein of course the actuatable jaw 2 is rotatably seated on this axis 5, which is provided on at least one side with at least one clamping nut 5 '. The angle-adjustable support jaw 3 is provided in the region of its rear side flanks 6 with two hinge plates 7 mounted on the axis 5 and corresponding hinge plates 8 are arranged on the holder 1 for the actuating element 1, or these plates 8 are formed by the corresponding ends of the holder 1 , at the other end, as can also be seen from FIGS. 1 to 3, the actuating element 1 'is arranged pivotably at 1˝. This pivotability is necessary in view of the fact that the coupling point 12 between the end of the actuator 4 (piston rod) and the actuating lever 13 of the actuatable jaw 2 about the axis 5 describes an arc.

Je nach konstruktiver Gestaltung, insbesondere aber orien­tiert am Ausführungsbeispiel nach Fig. 1, sind mit einer sol­chen Vorrichtung verschiedene Einstellungen der einstellbaren Auflageklemmbacke 3 möglich, wie strichpunktiert in Fig. 3 verdeutlich, wobei der Halter 1 seine fixierte Stellung am Träger 16 aber beibehält. Die Verrastungselemente 10 an den Gelenklaschen 7 bzw. 8 können im Sinne der Fig. 4, 5 ausge­bildet sein, die dort stark vergrößert dargestellt sind. Falls die Tiefe der Profilierung der Verrastungselemente 10 eine Ausrastung und damit eine Verstellung nur mit beträcht­lichem axialem Spiel nach Lösung der Achse 5 zu bewerkstelli­gen sind, kann die Klemmbacke bspw. im Sinne der Fig. 6 aus­gebildet werden, d.h. derart, daß in mindestens einer der Ge­lenklaschen 8 des Halters 1 ein in bezug auf die Achse 5 axial verstellbarer, aber gegen Drehung fixierter, mit Verra­stungselementen 10 von den entgegengesetzt gerichteten Verra­stungselementen an den Laschen 7 der einstellbaren Klemmbacke 3 gelöst werden können. Nach gewünschter Winkeleinstellung wird dann die Achse 5 mit der Stellmutter 5′ einfach wieder festgespannt, wodurch die Verrastungselemente 10 wieder zur Anlage kommen.Depending on the structural design, but in particular based on the exemplary embodiment according to FIG. 1, various settings of the adjustable support jaw 3 are possible with such a device, as shown in broken lines in FIG. 3 illustrates, the holder 1, however, maintaining its fixed position on the carrier 16. The locking elements 10 on the hinge plates 7 and 8 can be designed in the sense of FIGS. 4, 5, which are shown there greatly enlarged. If the depth of the profiling of the latching elements 10 can be disengaged and thus adjusted only with considerable axial play after the axis 5 has been released, the clamping jaw can be designed, for example, in the sense of FIG. 6, that is, in such a way that in at least one of the Articulated brackets 8 of the holder 1 can be released axially with respect to the axis 5, but fixed against rotation, with latching elements 10 from the oppositely directed latching elements on the brackets 7 of the adjustable clamping jaw 3. After the desired angle setting, the axis 5 is then simply tightened again with the adjusting nut 5 ', as a result of which the latching elements 10 come to rest again.

Wie aus Fig. 2 ersichtlich, ist vorteilhaft auch der Stellhe­bel 13 der schwenkbaren Klemmbacke 2 in bezug auf diese ein­stellbar und mit entsprechenden Verrastungselementen 10′ zu dieser fixierbar. Wenn also bspw. orientiert an Fig. 1 die Auflageklemmbacke 3 im Gegenuhrzeigersinn um 90° nach unten verschwenkt und fixiert wird, wird der mit Pfeil angedeutete Öffnungswinkel für die schwenkbare Klemmbacke 2 dadurch bei­behalten, daß man die Klemmbacke 2 aus ihrer Verrastung zum Stellhebel 13 löst und ebenfalls um 90° nach unten ver­schwenkt und wieder zum Fortsatz 13 fixiert, der aber dabei seine dargestellte Stellung beibehält.As can be seen from Fig. 2, the adjusting lever 13 of the pivotable jaw 2 is advantageously adjustable in relation to this and fixable with corresponding locking elements 10 'to this. If, for example, in FIG. 1, the support jaw 3 is pivoted downward and fixed by 90 ° in the counterclockwise direction, the opening angle indicated by the arrow for the pivotable jaw 2 is maintained in that the jaw 2 is released from its locking to the actuating lever 13 and also pivoted downwards by 90 ° and fixed again to the extension 13, which, however, remains in the position shown.

Beim Ausführungsbeispiel nach Fig. 7 wird die Einstellbarkeit der einstellbaren Auflageklemmbacke 3 auf andere Weise be­wirkt. Abgesehen davon, macht dieses Ausführungsbeispiel auch deutlich, daß die Laschen 7 der Auflageklemmbacke 3 nicht zwingend auf der gleichen Achse 5 wie die Klemmbacke 2 gela­gert sein müssen, sondern auf einer eigenen Achse 5˝ oder Achsbolzen des Halters 1 gelagert sein können, wie dies dar­ gestellt ist. Unabhängig davon wird hierbei die Einstellung mit einem Stellglied 14, bspw. in Form einer kleinen Gewinde­spindel bewirkt, die bspw. mit einer Kugelkopfausbildung an einem Ende mit einem Fortsatz 3′ der Auflageklemmbacke 3 ge­koppelt ist. Mit seinem anderen Ende greift das Stellglied 14 in eine drehbare Gewindeaufnahme ein, so daß bei Betätigung der Spindel die Auflageklemmbacke 3 winklig zum Halter 1 ver­stellt werden kann. Elemente zur Fixierung der Spindel in ge­wünschter Stellung sind nicht dargestellt, abgesehen davon, daß das vorzusehende Gewinde zweckmäßig mit selbsthemmender Steigung ausgestattet sein kann.In the embodiment according to FIG. 7, the adjustability of the adjustable support jaw 3 is effected in a different way. Apart from this, this embodiment also makes it clear that the tabs 7 of the support jaw 3 do not necessarily have to be mounted on the same axis 5 as the jaw 2, but can be mounted on a separate axis 5 'or axle bolt of the holder 1, as shown is posed. Regardless of this, the setting is effected with an actuator 14, for example in the form of a small threaded spindle, which is coupled, for example, with a spherical head configuration at one end with an extension 3 'of the support jaw 3. With its other end, the actuator 14 engages in a rotatable threaded receptacle, so that the support jaw 3 can be adjusted at an angle to the holder 1 when the spindle is actuated. Elements for fixing the spindle in the desired position are not shown, apart from the fact that the thread to be provided can expediently be equipped with a self-locking pitch.

Um die Vorrichtung an einem Träger 16, wie üblich, fixieren zu können, sind deren Halter 1 mit je zwei Durchgangsbohrun­gen 15 versehen. Der Träger 16 besteht dabei, wie besser aus Fig. 1A ersichtlich, aus einem stabilen Winkelstück, das bspw. am Ende eines ausreichend stabilen Tragarmes 17 ange­schweißt ist, der dann seinerseits mit seinem anderen Ende in geeigneter Weise am Gestell oder Gehäuse einer Bearbeitungs­station (nicht dargestellt) befestigt wird.In order to be able to fix the device to a support 16, as usual, the holders 1 are provided with two through bores 15 each. The carrier 16 consists, as can be seen better from FIG. 1A, of a stable angle piece, which is welded, for example, to the end of a sufficiently stable support arm 17, which in turn is then suitably attached to the frame or housing of a processing station with its other end (not shown) is attached.

Claims (6)

1. Klemmvorrichtung zum Festklemmen von insbesondere Blechen, bestehend aus zwei aneinem Halter (1) für ein Betätigungselement (1′) relativ zueinander in Schließ- und Öffnungsstellung bewegbar angeordneten Klemmbacken (2, 3), von denen die mit einem Stellhebel (13) verse­hene Klemmbacke (2) mit dem Betätigungsglied (4) des am Halter (1) schwenkbar gelagerten Betätigungselements (1′) gekoppelt ist,
dadurch gekennzeichnet,
daß die Auflageklemmbacke (3) am Halter (1) unabhängig von der Klemmbacke (2) winkeleinstellbar und in unter­schiedlichen Stellungen fixierbar angeordnet ist und daß der Stellhebel (13) in bezug auf die Klemmbacke (2) zu dieser ebenfalls winkeleinstellbar und in unter­schiedlichen Stellungen fixierbar ausgebildet ist.1. Clamping device for clamping in particular sheet metal, consisting of two on a holder (1) for an actuating element (1 ') relative to each other in the closed and open position movable jaws (2, 3), of which the one provided with an adjusting lever (13) Clamping jaw (2) is coupled to the actuating member (4) of the actuating element (1 ') pivotably mounted on the holder (1),
characterized,
that the support jaw (3) on the holder (1) independently of the jaw (2) is adjustable in angle and can be fixed in different positions and that the adjusting lever (13) with respect to the jaw (2) is also adjustable in angle and fixable in different positions is trained. 2. Klemmvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die betätigbare Klemmbacke (2) und die winkelein­stellbare Auflageklemmbacke (3) auf einer gemeinsamen Achse (5) des Halters (1) angeordnet sind.2. Clamping device according to claim 1,
characterized,
that the actuatable jaw (2) and the angle-adjustable support jaw (3) are arranged on a common axis (5) of the holder (1). 3. Klemmvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die winkeleinstellbare Auflageklemmbacke (3) im Be­reich ihrer hinteren Seitenflanken (6) mit zwei an der Achse (2) angelenkten Gelenklaschen (7) versehen und am Betätigungseinrichtungshalter (1) entsprechende, auf der Achse (5) sitzende Gelenklaschen (8) angeordnet sind.3. Clamping device according to claim 1,
characterized,
that the angle-adjustable support jaw (3) in the region of its rear side flanks (6) with two on the Provide axis (2) articulated link plates (7) and corresponding link plates (8) are arranged on the actuator holder (1) and are located on the axis (5). 4. Klemmvorrichtung nach Anspruch 3,
dadurch gekennzeichnet,
daß die Gelenklaschen (7, 8) an ihren gegeneinander an­liegenden Flankenflächen (9) mit Verrastungselementen (10) versehen sind.4. Clamping device according to claim 3,
characterized,
that the hinge plates (7, 8) are provided on their mutually abutting flank surfaces (9) with locking elements (10). 5. Klemmvorrichtung nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
daß in mindestens einer der Gelenklaschen (8) des Hal­ters (1) ein in bezug auf die Achse (5) axial verstell­barer, aber gegen Drehung fixierter, mit Verrastungsele­menten (10) versehener Klemmbackenfeststellring (11) an­geordnet ist.5. Clamping device according to claim 3 or 4,
characterized,
that in at least one of the articulated lugs (8) of the holder (1) is arranged with respect to the axis (5) axially adjustable, but fixed against rotation, provided with locking elements (10) clamping jaw locking ring (11). 6. Klemmvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die winkeleinstellbare Auflageklemmbacke (3) an ei­ner eigenen (5˝) oder einer gemeinsamen Achse (5) mit der anderen Backe (2) gelagert und mit einem am Halter (1) angeordneten Stellglied (14) gelenkig verbunden ist.6. Clamping device according to claim 1,
characterized,
that the angle-adjustable support jaw (3) is mounted on its own (5˝) or a common axis (5) with the other jaw (2) and is articulated to an actuator (14) arranged on the holder (1).
EP88108386A 1987-05-30 1988-05-26 Clamping device Expired - Lifetime EP0293755B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88108386T ATE63250T1 (en) 1987-05-30 1988-05-26 CLAMPING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8707773U DE8707773U1 (en) 1987-05-30 1987-05-30 Clamping device
DE8707773U 1987-05-30

Publications (3)

Publication Number Publication Date
EP0293755A2 true EP0293755A2 (en) 1988-12-07
EP0293755A3 EP0293755A3 (en) 1989-03-22
EP0293755B1 EP0293755B1 (en) 1991-05-08

Family

ID=6808687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108386A Expired - Lifetime EP0293755B1 (en) 1987-05-30 1988-05-26 Clamping device

Country Status (4)

Country Link
EP (1) EP0293755B1 (en)
AT (1) ATE63250T1 (en)
DE (2) DE8707773U1 (en)
ES (1) ES2022529B3 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP0503193A2 (en) * 1991-03-11 1992-09-16 Btm Corporation Sealed power clamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4236670A1 (en) * 1992-10-30 1994-05-05 Sta Co Mettallerzeugnisse Gmbh Clamping device

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US3861254A (en) * 1974-03-04 1975-01-21 Judelshon Industries Self-loading roll slitter
US4405120A (en) * 1981-06-05 1983-09-20 O.K. Machine And Tool Corporation Printed circuit board holder
DD239562A1 (en) * 1985-07-25 1986-10-01 Komb Veb Elektro Apparate Werk LEVER TENSIONING DEVICE FOR SINGLE-SIDED LOANING OF FLAT WORKPIECES

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US3545050A (en) * 1969-01-30 1970-12-08 I S I Mfg Inc Power clamp with pull-back action
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DE7806055U1 (en) * 1978-03-01 1978-06-15 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Toggle joint clamps
DE3513906C2 (en) * 1985-04-17 1987-04-16 Carlheinz 8484 Grafenwöhr Geuss Clamping device for holding large flat panels
DE3705269A1 (en) * 1986-02-20 1987-08-27 Carver & Co Eng Adjustable clamping device and accessories thereof

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Publication number Priority date Publication date Assignee Title
DE2315945A1 (en) * 1972-04-12 1973-10-25 Warnke Umformtech Veb K GRIPPING DEVICE FOR TRANSPORT, IN PARTICULAR OF SHEET METAL PARTS
US3861254A (en) * 1974-03-04 1975-01-21 Judelshon Industries Self-loading roll slitter
US4405120A (en) * 1981-06-05 1983-09-20 O.K. Machine And Tool Corporation Printed circuit board holder
DD239562A1 (en) * 1985-07-25 1986-10-01 Komb Veb Elektro Apparate Werk LEVER TENSIONING DEVICE FOR SINGLE-SIDED LOANING OF FLAT WORKPIECES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0503193A2 (en) * 1991-03-11 1992-09-16 Btm Corporation Sealed power clamp
EP0503193A3 (en) * 1991-03-11 1993-01-13 Btm Corporation Sealed power clamp

Also Published As

Publication number Publication date
ES2022529B3 (en) 1991-12-01
EP0293755B1 (en) 1991-05-08
DE8707773U1 (en) 1988-10-06
DE3862683D1 (en) 1991-06-13
EP0293755A3 (en) 1989-03-22
ATE63250T1 (en) 1991-05-15

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